CEO John Legere takes to Twitter to update customers about network issues that hit an unspecified number of users on Friday.
Disruption to the carrier's network began around 6 p.m. PT but did not appear to affect all customers.
Advance orders began online at 12 a.m. PT on Friday, but the online Apple Store still wasn't back up two hours later. And some other preorder sites had hiccups, including Sprint and T-Mobile.
The Cupertino, Calif., electronics giant doesn't always get it right. CNET details some of Apple's biggest and most recent screw-ups.
The launch of the new iPhone 6 models is supposed to be Apple's biggest. But the company's online store wasn't up to the task at the start.
The carrier pulled back the curtain on some improvements made to the network covering MetLife Stadium, just in time for the big game.
In a statement on Wednesday, the cellular carrier says that a software problem generated "abnormal congestion" on its network.
Customers affected by a widespread outage Tuesday share their grievances over both the technical issues and the way that the carrier handled the matter.
The cellular carrier acknowledges problems affecting both its voice and data networks.
Keeping track of where their data is stored, and whether it is truly protected is not a core competency for consumers. The T-Mobile outage proves it should be.